/*
Theme Name:  Heycard
Theme URI:   https://heycard.ai/
Author:      GCreate
Author URI:  https://www.gcreate.com.tw/
Description: Heycard 官網專用輕量經典主題。無頁面建構器、無框架，全部手刻 PHP 範本 + 精簡 CSS。文章系統走 WordPress 原生 the loop；會員登入與免費試用由外部獨立系統承接（後台可設定網址）。
Version:     1.0.0
Requires at least: 6.4
Requires PHP: 8.1
License:     GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: heycard
Tags:        one-column, custom-menu, translation-ready
*/

/* =========================================================================
   本檔＝全站共用層（每頁都載）
   內容：Design Tokens / Reset / 基礎排版 / 共用元件 / 頁首 / 頁尾
   單頁專屬樣式請放 css/*.css，由 inc/enqueue.php 條件式載入
   設計規範全文見 docs/DESIGN-SYSTEM.md
   ========================================================================= */

/* ------------------------------------------------------------------
   1. Design Tokens — 依 Heycard VI
   ------------------------------------------------------------------ */
:root{
  /* Brand palette */
  --dark-steel:#1E1E1E;
  --metal-gray:#BDBDBD;
  --manganese:#5C5CFF;        /* 主色：錳藍紫 */
  --manganese-light:#7F7EFF;
  --turquoise:#00D6B3;        /* 輔色：土耳其藍 */
  --silver-1:#E6E6E6;
  --silver-2:#D9D9D9;
  --ink:#0E0E10;              /* 全站底色 */
  --ink-2:#131316;
  --ink-3:#0B0B0C;            /* Footer 底色 */

  /* Gradients */
  --grad-manganese:linear-gradient(135deg,#7F7EFF 0%,#5C5CFF 45%,#2E2EB8 100%);
  --grad-silver:linear-gradient(120deg,#F4F4F5 0%,#C9C9CC 30%,#EDEDEF 52%,#A8A8AC 78%,#DCDCDE 100%);
  --grad-steel:linear-gradient(150deg,#3A3A3A 0%,#1E1E1E 55%,#0B0B0C 100%);

  /* Surfaces & lines（一律用 rgba 疊在 --ink 上，不另開實色） */
  --surface-1:rgba(255,255,255,.035);
  --surface-2:rgba(255,255,255,.05);
  --surface-3:rgba(255,255,255,.06);
  --line-1:rgba(230,230,230,.08);
  --line-2:rgba(230,230,230,.10);
  --line-3:rgba(230,230,230,.22);
  --line-brand:rgba(127,126,255,.40);

  /* Typography */
  --font-en:'Manrope','Creato Display',system-ui,sans-serif;
  --font-tc:'Noto Sans TC','Taipei Sans TC Beta','PingFang TC',sans-serif;
  --font-mix:'Manrope','Noto Sans TC','PingFang TC',sans-serif;

  /* Shape & rhythm */
  --radius:20px;
  --radius-sm:14px;
  --radius-md:18px;
  --radius-lg:22px;
  --radius-pill:999px;
  --nav-h:72px;
  --section-y:120px;
  --wrap:1180px;

  /* Elevation */
  --shadow-card:0 24px 70px rgba(0,0,0,.45);
  --shadow-float:0 30px 80px rgba(0,0,0,.5);
  --shadow-brand:0 8px 28px rgba(92,92,255,.35);

  /* Motion */
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur-fast:.25s;
  --dur-base:.3s;
  --dur-slow:.6s;
}

/* ------------------------------------------------------------------
   2. Reset & Base
   ------------------------------------------------------------------ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{
  font-family:var(--font-mix);
  background:var(--ink);
  color:var(--silver-1);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  line-height:1.7;
}
::selection{background:var(--manganese);color:#fff}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit}
img{max-width:100%;height:auto;display:block}
svg{display:block}
:focus-visible{outline:2px solid var(--manganese-light);outline-offset:3px;border-radius:4px}

.screen-reader-text{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;padding:12px 20px;
  background:var(--manganese);color:#fff;font-weight:700;border-radius:0 0 12px 0;
}
.skip-link:focus{left:0}

/* ------------------------------------------------------------------
   3. Layout primitives
   ------------------------------------------------------------------ */
.wrap{width:min(var(--wrap),92%);margin:0 auto}
.wrap-narrow{width:min(780px,92%);margin:0 auto}
.section{padding:var(--section-y) 0}
.section--hairline{border-top:1px solid rgba(230,230,230,.07)}

/* ------------------------------------------------------------------
   4. Typography components
   ------------------------------------------------------------------ */
.eyebrow{
  font-family:var(--font-en);font-weight:700;font-size:12px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--manganese-light);
}
.section-head{text-align:center;max-width:720px;margin:0 auto 64px}
.section-head h2{
  font-size:clamp(26px,3.4vw,42px);font-weight:900;color:#fff;
  margin-top:16px;line-height:1.45;word-break:keep-all;
}
.section-head p{color:var(--metal-gray);margin-top:16px;font-size:16px;line-height:1.9}

/* Wordmark — Heycard 的 y 一律：主色 + 斜體 + skewX(-6deg) */
.wordmark{font-family:var(--font-en);font-weight:600;letter-spacing:-.02em;display:inline-flex;align-items:baseline}
.wordmark .y{color:var(--manganese);font-style:italic;font-weight:700;transform:skewX(-6deg);display:inline-block}

/* ------------------------------------------------------------------
   5. Buttons
   ------------------------------------------------------------------ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;border-radius:var(--radius-pill);font-weight:700;font-size:15px;
  padding:14px 28px;transition:var(--dur-fast);white-space:nowrap;text-align:center;
}
.btn-primary{background:var(--grad-manganese);color:#fff;box-shadow:var(--shadow-brand)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(92,92,255,.5)}
.btn-ghost{background:transparent;color:var(--silver-1);border:1px solid var(--line-3)}
.btn-ghost:hover{border-color:var(--silver-1);background:rgba(255,255,255,.05)}
.btn-turquoise{background:rgba(0,214,179,.08);border:1px solid rgba(0,214,179,.3);color:var(--turquoise)}
.btn-turquoise:hover{background:rgba(0,214,179,.14)}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-block{width:100%}

/* ------------------------------------------------------------------
   6. 共用小元件
   ------------------------------------------------------------------ */
.chip-avatar{
  border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-family:var(--font-en);color:#fff;
}
.ai-dot{
  width:7px;height:7px;border-radius:50%;background:var(--manganese);
  box-shadow:0 0 10px var(--manganese);animation:hc-glow 2s ease-in-out infinite;flex-shrink:0;
}
@keyframes hc-glow{50%{box-shadow:0 0 3px var(--manganese)}}

/* 進場動畫：由 js/main.js 的 IntersectionObserver 加上 .is-in */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal-l.is-in{opacity:1;transform:none}
.reveal-r{opacity:0;transform:translateX(24px);transition:opacity .7s var(--ease) .3s,transform .7s var(--ease) .3s}
.reveal-r.is-in{opacity:1;transform:none}

/* ------------------------------------------------------------------
   7. Header / Nav
   ------------------------------------------------------------------ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  background:rgba(14,14,16,.72);border-bottom:1px solid var(--line-1);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-logo{font-size:26px;color:#fff}
.nav-menu{display:flex;gap:32px;font-size:14.5px;color:var(--metal-gray);list-style:none;margin:0;padding:0}
.nav-menu li{position:relative}
.nav-menu a{transition:color var(--dur-fast)}
.nav-menu a:hover,.nav-menu .current-menu-item > a{color:#fff}

/* 下拉選單（WP 選單第二層） */
.nav-menu .sub-menu{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(6px);
  min-width:210px;list-style:none;padding:10px;margin:0;border-radius:var(--radius-md);
  background:rgba(20,20,22,.97);border:1px solid var(--line-2);box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transition:var(--dur-fast);
}
.nav-menu li:hover > .sub-menu,
.nav-menu li:focus-within > .sub-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-menu .sub-menu a{display:block;padding:10px 14px;border-radius:10px;font-size:14px}
.nav-menu .sub-menu a:hover{background:rgba(92,92,255,.14);color:#fff}

.nav-actions{display:flex;align-items:center;gap:12px}
.btn-login{
  padding:10px 22px;font-size:14px;background:var(--surface-3);
  border:1px solid var(--line-3);color:var(--silver-1);
  border-radius:var(--radius-pill);font-weight:600;transition:var(--dur-fast);
  display:inline-flex;align-items:center;
}
.btn-login:hover{border-color:var(--manganese-light);color:#fff}

.hamburger{display:none;width:42px;height:42px;position:relative}
.hamburger span{position:absolute;left:9px;right:9px;height:2px;background:var(--silver-1);border-radius:2px;transition:var(--dur-base)}
.hamburger span:nth-child(1){top:14px}
.hamburger span:nth-child(2){top:20px}
.hamburger span:nth-child(3){top:26px}
.hamburger.is-open span:nth-child(1){top:20px;transform:rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){top:20px;transform:rotate(-45deg)}

/* 手機抽屜 */
.drawer{
  position:fixed;inset:var(--nav-h) 0 0 0;z-index:99;
  background:rgba(14,14,16,.97);backdrop-filter:blur(20px);
  padding:32px 6%;display:none;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer ul{list-style:none;margin:0;padding:0}
.drawer a{display:block;padding:16px 4px;font-size:19px;border-bottom:1px solid var(--line-1);color:var(--silver-1)}
.drawer .sub-menu a{padding-left:18px;font-size:16px;color:var(--metal-gray)}
.drawer-auth{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:28px;padding-bottom:24px}
.drawer-auth .btn{width:100%;padding:16px}

.site-main{padding-top:var(--nav-h)}
body.home .site-main{padding-top:0} /* 首頁 hero 自帶 nav 高度的 padding */

/* ------------------------------------------------------------------
   8. Email 快速註冊表單（送往外部系統）
   ------------------------------------------------------------------ */
.signup{display:flex;gap:10px;max-width:480px}
.signup input{
  flex:1;min-width:0;padding:16px 20px;border-radius:var(--radius-pill);font-size:15px;
  border:1px solid var(--line-3);background:var(--surface-3);color:#fff;outline:none;transition:var(--dur-fast);
}
.signup input::placeholder{color:rgba(189,189,189,.7)}
.signup input:focus{border-color:var(--manganese-light);box-shadow:0 0 0 4px rgba(92,92,255,.18)}
.signup .btn{flex-shrink:0}
.signup-note{margin-top:14px;font-size:13px;color:rgba(189,189,189,.75)}
.signup-note b{color:var(--turquoise);font-weight:500}

/* ------------------------------------------------------------------
   8b. 搜尋表單（文章列表、搜尋頁、404 都會用到，因此放全站共用層）
   ------------------------------------------------------------------ */
.search-form{display:flex;gap:10px;max-width:440px;margin-top:24px}
.search-form input{
  flex:1;min-width:0;padding:13px 18px;border-radius:var(--radius-pill);font-size:14.5px;
  border:1px solid var(--line-3);background:var(--surface-3);color:#fff;outline:none;transition:var(--dur-fast);
}
.search-form input::placeholder{color:rgba(189,189,189,.7)}
.search-form input:focus{border-color:var(--manganese-light);box-shadow:0 0 0 4px rgba(92,92,255,.18)}

/* ------------------------------------------------------------------
   9. Footer
   ------------------------------------------------------------------ */
.site-footer{border-top:1px solid var(--line-1);padding:48px 0 36px;background:var(--ink-3)}
.site-footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.footer-left{display:flex;flex-direction:column;gap:8px}
.footer-tagline{font-family:var(--font-en);font-size:11.5px;letter-spacing:.26em;color:var(--metal-gray);text-transform:uppercase}
.footer-tagline .slash{color:var(--manganese)}
.footer-menu{display:flex;gap:26px;font-size:13.5px;color:var(--metal-gray);list-style:none;margin:0;padding:0;flex-wrap:wrap}
.footer-menu a:hover{color:#fff}
.footer-copy{width:100%;margin-top:26px;font-size:12px;color:rgba(189,189,189,.5)}
.footer-copy a:hover{color:var(--silver-1)}

/* 行動版底部固定 CTA 列 */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:98;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(14,14,16,.92);backdrop-filter:blur(16px);
  border-top:1px solid var(--line-2);gap:10px;
}
.mobile-bar .btn{flex:1;padding:14px;font-size:14.5px}

/* ------------------------------------------------------------------
   10. RWD — 全站共用件
   ------------------------------------------------------------------ */
@media(max-width:960px){
  :root{--section-y:80px}
  .nav-menu{display:none}
  .nav-actions .btn-nav-cta{display:none}
  .hamburger{display:block}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:110px}
  .section-head{margin-bottom:44px}
}
@media(max-width:520px){
  .signup,.search-form{flex-direction:column}
  .signup .btn,.search-form .btn{width:100%}
  .nav-actions .btn-login{padding:9px 16px;font-size:13px}
  .footer-menu{gap:16px}
}

/* ------------------------------------------------------------------
   11. 無障礙：降低動態效果
   ------------------------------------------------------------------ */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;animation-iteration-count:1!important}
  html{scroll-behavior:auto}
  .reveal,.reveal-l,.reveal-r{opacity:1;transform:none}
}